Clamp



F. K. IIQBBS.

CLAMP.

APPLICATION FILED Nov.9. 1920.

Patented 001. 18, 1921.

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CLAMP.

APPLlCATlON FILED NOV. 9., 1920. 1,894,413. Patented OGG. 18, 1921. Z4 4 2 SHEETS-SHEET 2.

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UNITED STATES FRNK K. HOBBS, 0F GUYMON, OKLAHOMA.

CLAMP.

Specification of Letters Patent.

Patented Oct. 18, 1921.

Application filed November 9, 1520. Serial No. 422,909.

To all whom t may concern: Y

Be it known that I, FRANK K. I IoBBs, a citizen of the United States, residing at Guymon, in the county of Texas and State of Oklahoma, have invented. new and useful Improvements in Clamps, of which the following is a specification. I

This invention comprehends the provision of a machine for elevating and lowering pipes, sucker rods and the like, and has for its object a construction which can be conveniently associated with the pipe or rod to be moved and operated in a very easy manner foi the purpose intended.

More specifically stated, the invention embodies a sectional frame, the respective sections being hingedly connected together and each supporting a pair of rollers, the rollers of one section coperating with the rollers of the other section to grip the pipe or rod to be moved, the rollers being connected together by gears so that they may be readily and easily rotated for the purpose intended.

In carrying out the invention I also equip the respective sections of the frame'with a sectional clamp which can be readlly and conveniently associated with a pipe upon which the frame is mounted when used for extracting or removing sucker rods or the ike.

The nature and advantages of the invention will be better understood when the following detail description is read in connection with the accompanying drawings, the invention residing in the construction, combination and arrangement of parts as claimed.

In the drawings forming part of this application, like numerals of reference indicate similar parts in the several views and wherein Figure 1 represents a plan view of the device.

Fig. 2 a side elevation.

Fig. 3, a sectional side elevation through line 3, 3 Fig. 2.

et represents a sectional side elevationV at right angles to Fig.

Fig. 5 a plan view of the clamp.

The machine forming the subject matter of my invention comprises a sectional frame, the respective sections being indicated at l0 and 1l and hingedly connected, as at 12. The sections are designed to unitedly dene a box-like member when the sections are connected together, the sections being held in this position by means of a. latch l2. Journa-led between the side members 13 of each section' are spaced upper and lower rollers 14 and l5 respectively, the rollers 14 of the respective sections operating in one pair while the. rollers l5 of the said sections operate as another pair when the sections of the frame are secured together for use. These upper and lower pairs of rollers serve to grip between them the rod or pipe which is adapted to be moved, and in order that pipes of different diameters may be accommodated between the rollers, the rollers in the section 1l of the frame are mounted for yielding movement toward and away from the rollers of the section 10. Fixed upon the shaft of each roller and at the opposite end of the latter are gears '16, while journaled upon the parallel sides of each section of the frame are relatively small cog wheels 17 which are arranged between the rollers of said section to mesh with the gears 16 thereof. When the sections ofthe frame are associated for use, the gears 16 of the upper rollers mesh, while the gears 16 of the lower rollers mesh so that all of the rollers are rotated in unison upon turning of the crank handle 18 associated with the roller la of the section l0. By reason of this construction, the machine can be conveniently associated with pipes or rods of different diameters and the latter eifectively gripped for the purposes set forth. Carried by each of the sections l0 and ll of the frame is a semi-circular member 20, these members unitedly defining a clamp to embrace a pipe for supporting the machine while the sucker rod or the like is being extracted through the instrumentality of the rollers 14 and 15. The members 2O of said clamp are secured together in any suitable manner, such as at 22.

While it is believed that from the foregoing description, the nature and advantages of the invention will be readily apparent, I desire to have it understood that I do not limit myself to what is herein shown and described and that such changes may be resorted to when desired as fall within the scope of what is claimed.

Vhat I claim is I l. A machine of the class described comprising a sectional frame, said sections being hingedly connected together, upper and lower rollers journaled in each section, the upper and lower rollers of the respective Y said gears,

sections being geared together and operating in pairs, means whereby all of said rollers a re rotated in unison, and means for holding said sections of the frame operativelT associated.

A machine of the class described comprising` a sectional frame, the sections o said frame being hingedly connected tolgether, upper and lower rollers journaled in each sectioin-gears arranged at the opposite ends of each roller, cog Wheels inter-y posed between the rollers and meshing with the upper and lower rollers of the respective sections operating in pairs andA having; their respective gears meshing with each other, means for rotating all of said rollers in unison, and means for holding the sections ot the frame connected togetherf p A machine of the class described comprising a sectional frame., said sections being hingedly connected together, upper and lower rollers journaled in each section, said upper and lower rollers ot' the respective sections operating` in pairs, means whereby all. or said rollers are rotated in unison, a

semis-circular member carried by cachot the i traine sections, said members unitedly defining a clamp, .and means for holding Vsaid members together, Vtor the purpose specified. n testimony whereof aiiix my signature. FRANK K. HOBBS. 

